If you've downloaded your copy of BitTornado from Download.com, ZDNet.com, Freeware4PC.com or anywhere else except for an official mirror from BitTornado.com, your computer may be infected with malware! I suggest you download a copy of Spybot: Search and Destroy from www.safer-networking.org . You should also check for the existence of a file "mssoi32.exe" and disable it on your system.

Update: I was contacted by Download.com, who has removed the offending server and replaced it with the official mirrors. ZDNet.com was also updated. Other sites around the net are still spreading the bad copy, however, so I recommend only downloading BitTornado from the official web page.